API 5CT Steel Pipe
API is an acronym for the American Petroleum Institute and is considered the most authoritative and comprehensive principle in the oil and gas industry. API 5B and API 5CT are mainly used for oil casing. API 5CT oil casing can be divided into seamless steel pipe and welded steel pipe.
- Product Description
- Spot Warehouse
- Product Inspection
- Product Measurement
- Product Packaging
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- Commodity name: API 5CT Steel Pipe
API is an acronym for the American Petroleum Institute and is considered the most authoritative and comprehensive principle in the oil and gas industry. API 5B and API 5CT are mainly used for oil casing. API 5CT oil casing can be divided into seamless steel pipe and welded steel pipe.
API 5CT Steel Pipe Description
API 5CT is a standard technical specification of steel pipes for casing and tubing in oil or gas industries. It can be used in oil or gas drilling and conveying. Commonly used oilfield API-5CT casing steel grades are J55, K55, N80-1, N80Q, P110. Casings are mostly used in oil well drilling. According to the API-5CT standard, pipes can be divided into STC (short thread), LTC (long thread) and BTC (support thread) and their joints.
Product ParametersProduct Name
API 5CT Steel Pipe
Standard
EN/DIN/JIS/ASTM/BS/ASME/AISI etc.
Outer Diameter
Seamless: 1/4"-36"
Welding: 21.3mm-3620mm
Round Tube: 1/2"-10"
Square Tube/Rectangular Tube: 15x15mm-400x600mm
Wall Thickness
Seamless: 1.25mm-50mm
Welding: 1.65mm-65mm
Length
3-12 meters, Support customization
Surface Process
Bright, Polished, Black
Other Services
Machining(cnc), Centerless Grinding(cg), Heat Treatment, Annealing, Pickling, Polishing, Rolling, Forging, Cutting, Bending, Small Machining, etc.
Chemical Composition
Grade
C ≤
Si ≤
Mn ≤
P ≤
S ≤
Cr ≤
Ni ≤
With
V ≤
Als ≤
API 5CT J55
0.34-0.39
0.20-0.35
1.25-1.50
0.020
0.015
0.15
0.20
0.20
/
0.020
API 5CT K55
0.34-0.39
0.20-0.35
1.25-1.50
0.020
0.015
0.15
0.20
0.20
/
0.020
API 5CT N80
0.34-0.38
0.20-0.35
1.45-1.70
0.020
0.015
0.15
/
/
0.11-0.16
0.020
API 5CT L80
0.15-0.22
1.00
0.25-1.00
0.020
0.010
12.0-14.0
0.20
0.20
/
0.020
API 5CT J P110
0.26-035
0.17-0.37
0.40-0.70
0.020
0.010
0.80-1.10
0.20
0.20
0.08
0.020
Mechanical Properties
Grade
Yield Strength (Mpa)
Tensile Strength (Mpa)
API 5CT J55
379-552
≥ 517
API 5CT K55
≥ 655
≥ 517
API 5CT N80
552-758
≥ 689
API 5CT L80
552-655
≥ 655
API 5CT P110
758-965
≥ 862
Scope of Application
API 5CT oil casing is mainly used to transport oil, natural gas, coal gas, water and other liquids, gases.
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API 5CT Steel Pipe - Stock Warehouse
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API 5CT Steel Pipe - Product Inspection
Tensile Strength Testing Tensile Strength Testing Physical Performance Testing Chemical Composition Testing 
Inspection Hardness Testing Spectral Detection Mechanical Properties -
API 5CT Steel Pipe - Product Measurement
Width Measurement Length Measurement Thickness Measurement Thickness Measurement -
API 5CT Steel Pipe - Product Packaging
Jiuzhou Metal
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